<template>
    <div>
        <el-tabs type="border-card">
            <el-tab-pane label="秒" v-if="shouldHide('second')">
                <CrontabSecond
                    @update="updateCrontabValue"
                    :check="checkNumber"
                    :cron="crontabValueObj"
                    ref="cronsecond"
                />
            </el-tab-pane>

            <el-tab-pane label="分钟" v-if="shouldHide('min')">
                <CrontabMin
                    @update="updateCrontabValue"
                    :check="checkNumber"
                    :cron="crontabValueObj"
                    ref="cronmin"
                />
            </el-tab-pane>

            <el-tab-pane label="小时" v-if="shouldHide('hour')">
                <CrontabHour
                    @update="updateCrontabValue"
                    :check="checkNumber"
                    :cron="crontabValueObj"
                    ref="cronhour"
                />
            </el-tab-pane>

            <el-tab-pane label="日" v-if="shouldHide('day')">
                <CrontabDay
                    @update="updateCrontabValue"
                    :check="checkNumber"
                    :cron="crontabValueObj"
                    ref="cronday"
                />
            </el-tab-pane>

            <el-tab-pane label="月" v-if="shouldHide('month')">
                <CrontabMonth
                    @update="updateCrontabValue"
                    :check="checkNumber"
                    :cron="crontabValueObj"
                    ref="cronmonth"
                />
            </el-tab-pane>

            <el-tab-pane label="周" v-if="shouldHide('week')">
                <CrontabWeek
                    @update="updateCrontabValue"
                    :check="checkNumber"
                    :cron="crontabValueObj"
                    ref="cronweek"
                />
            </el-tab-pane>

            <el-tab-pane label="年" v-if="shouldHide('year')">
                <CrontabYear
                    @update="updateCrontabValue"
                    :check="checkNumber"
                    :cron="crontabValueObj"
                    ref="cronyear"
                />
            </el-tab-pane>
        </el-tabs>

        <div class="popup-main">
            <div class="popup-result">
                <p class="title">时间表达式</p>
                <table>
                    <thead>
                    <th v-for="item of tabTitles" width="40" :key="item">{{ item }}</th>
                    <th>Cron 表达式</th>
                    </thead>
                    <tbody>
                    <td>
                        <span>{{ crontabValueObj.second }}</span>
                    </td>
                    <td>
                        <span>{{ crontabValueObj.min }}</span>
                    </td>
                    <td>
                        <span>{{ crontabValueObj.hour }}</span>
                    </td>
                    <td>
                        <span>{{ crontabValueObj.day }}</span>
                    </td>
                    <td>
                        <span>{{ crontabValueObj.month }}</span>
                    </td>
                    <td>
                        <span>{{ crontabValueObj.week }}</span>
                    </td>
                    <td>
                        <span>{{ crontabValueObj.year }}</span>
                    </td>
                    <td>
                        <span>{{ crontabValueString }}</span>
                    </td>
                    </tbody>
                </table>
            </div>
            <CrontabResult :ex="crontabValueString"></CrontabResult>

            <div class="pop_btn">
                <el-button size="small" type="primary" @click="submitFill">确定</el-button>
                <el-button size="small" type="warning" @click="clearCron">重置</el-button>
                <el-button size="small" @click="hidePopup">取消</el-button>
            </div>
        </div>
    </div>
</template>

<script>
import CrontabSecond from './second.vue'
import CrontabMin from './min.vue'
import CrontabHour from './hour.vue'
import CrontabDay from './day.vue'
import CrontabMonth from './month.vue'
import CrontabWeek from './week.vue'
import CrontabYear from './year.vue'
import CrontabResult from './result.vue'

export default {
    data() {
        return {
            tabTitles: ['秒', '分钟', '小时', '日', '月', '周', '年'],
            tabActive: 0,
            myindex: 0,
            crontabValueObj: {
                second: '*',
                min: '*',
                hour: '*',
                day: '*',
                month: '*',
                week: '?',
                year: ''
            }
        }
    },
    name: 'vcrontab',
    props: ['expression', 'hideComponent'],
    methods: {
        shouldHide(key) {
            if (this.hideComponent && this.hideComponent.includes(key)) return false
            return true
        },
        resolveExp() {
            // 反解析 表达式
            if (this.expression) {
                let arr = this.expression.split(' ')
                if (arr.length >= 6) {
                    //6 位以上是合法表达式
                    let obj = {
                        second: arr[0],
                        min: arr[1],
                        hour: arr[2],
                        day: arr[3],
                        month: arr[4],
                        week: arr[5],
                        year: arr[6] ? arr[6] : ''
                    }
                    this.crontabValueObj = {
                        ...obj
                    }
                    for (let i in obj) {
                        if (obj[i]) this.changeRadio(i, obj[i])
                    }
                }
            } else {
                // 没有传入的表达式 则还原
                this.clearCron()
            }
        },
        // tab切换值
        tabCheck(index) {
            this.tabActive = index
        },
        // 由子组件触发，更改表达式组成的字段值
        updateCrontabValue(name, value, from) {
            'updateCrontabValue', name, value, from
            this.crontabValueObj[name] = value
            if (from && from !== name) {
                console.log(`来自组件 ${from} 改变了 ${name} ${value}`)
                this.changeRadio(name, value)
            }
        },
        // 赋值到组件
        changeRadio(name, value) {
            let arr = ['second', 'min', 'hour', 'month'],
                refName = 'cron' + name,
                insValue

            if (!this.$refs[refName]) return

            if (arr.includes(name)) {
                if (value === '*') {
                    insValue = 1
                } else if (value.indexOf('-') > -1) {
                    let indexArr = value.split('-')
                    isNaN(indexArr[0])
                        ? (this.$refs[refName].cycle01 = 0)
                        : (this.$refs[refName].cycle01 = indexArr[0])
                    this.$refs[refName].cycle02 = indexArr[1]
                    insValue = 2
                } else if (value.indexOf('/') > -1) {
                    let indexArr = value.split('/')
                    isNaN(indexArr[0])
                        ? (this.$refs[refName].average01 = 0)
                        : (this.$refs[refName].average01 = indexArr[0])
                    this.$refs[refName].average02 = indexArr[1]
                    insValue = 3
                } else {
                    insValue = 4
                    this.$refs[refName].checkboxList = value.split(',')
                }
            } else if (name == 'day') {
                if (value === '*') {
                    insValue = 1
                } else if (value == '?') {
                    insValue = 2
                } else if (value.indexOf('-') > -1) {
                    let indexArr = value.split('-')
                    isNaN(indexArr[0])
                        ? (this.$refs[refName].cycle01 = 0)
                        : (this.$refs[refName].cycle01 = indexArr[0])
                    this.$refs[refName].cycle02 = indexArr[1]
                    insValue = 3
                } else if (value.indexOf('/') > -1) {
                    let indexArr = value.split('/')
                    isNaN(indexArr[0])
                        ? (this.$refs[refName].average01 = 0)
                        : (this.$refs[refName].average01 = indexArr[0])
                    this.$refs[refName].average02 = indexArr[1]
                    insValue = 4
                } else if (value.indexOf('W') > -1) {
                    let indexArr = value.split('W')
                    isNaN(indexArr[0])
                        ? (this.$refs[refName].workday = 0)
                        : (this.$refs[refName].workday = indexArr[0])
                    insValue = 5
                } else if (value === 'L') {
                    insValue = 6
                } else {
                    this.$refs[refName].checkboxList = value.split(',')
                    insValue = 7
                }
            } else if (name == 'week') {
                if (value === '*') {
                    insValue = 1
                } else if (value == '?') {
                    insValue = 2
                } else if (value.indexOf('-') > -1) {
                    let indexArr = value.split('-')
                    isNaN(indexArr[0])
                        ? (this.$refs[refName].cycle01 = 0)
                        : (this.$refs[refName].cycle01 = indexArr[0])
                    this.$refs[refName].cycle02 = indexArr[1]
                    insValue = 3
                } else if (value.indexOf('#') > -1) {
                    let indexArr = value.split('#')
                    isNaN(indexArr[0])
                        ? (this.$refs[refName].average01 = 1)
                        : (this.$refs[refName].average01 = indexArr[0])
                    this.$refs[refName].average02 = indexArr[1]
                    insValue = 4
                } else if (value.indexOf('L') > -1) {
                    let indexArr = value.split('L')
                    isNaN(indexArr[0])
                        ? (this.$refs[refName].weekday = 1)
                        : (this.$refs[refName].weekday = indexArr[0])
                    insValue = 5
                } else {
                    this.$refs[refName].checkboxList = value.split(',')
                    insValue = 6
                }
            } else if (name == 'year') {
                if (value == '') {
                    insValue = 1
                } else if (value == '*') {
                    insValue = 2
                } else if (value.indexOf('-') > -1) {
                    insValue = 3
                } else if (value.indexOf('/') > -1) {
                    insValue = 4
                } else {
                    this.$refs[refName].checkboxList = value.split(',')
                    insValue = 5
                }
            }
            this.$refs[refName].radioValue = insValue
        },
        // 表单选项的子组件校验数字格式（通过-props传递）
        checkNumber(value, minLimit, maxLimit) {
            // 检查必须为整数
            value = Math.floor(value)
            if (value < minLimit) {
                value = minLimit
            } else if (value > maxLimit) {
                value = maxLimit
            }
            return value
        },
        // 隐藏弹窗
        hidePopup() {
            this.$emit('hide')
        },
        // 填充表达式
        submitFill() {
            this.$emit('fill', this.crontabValueString)
            this.hidePopup()
        },
        clearCron() {
            // 还原选择项
            ('准备还原')
            this.crontabValueObj = {
                second: '*',
                min: '*',
                hour: '*',
                day: '*',
                month: '*',
                week: '?',
                year: ''
            }
            for (let j in this.crontabValueObj) {
                this.changeRadio(j, this.crontabValueObj[j])
            }
        }
    },
    computed: {
        crontabValueString: function() {
            let obj = this.crontabValueObj
            let str =
                obj.second +
                ' ' +
                obj.min +
                ' ' +
                obj.hour +
                ' ' +
                obj.day +
                ' ' +
                obj.month +
                ' ' +
                obj.week +
                (obj.year == '' ? '' : ' ' + obj.year)
            return str
        }
    },
    components: {
        CrontabSecond,
        CrontabMin,
        CrontabHour,
        CrontabDay,
        CrontabMonth,
        CrontabWeek,
        CrontabYear,
        CrontabResult
    },
    watch: {
        expression: 'resolveExp',
        hideComponent(value) {
            // 隐藏部分组件
        }
    },
    mounted: function() {
        this.resolveExp()
    }
}
</script>
<style scoped>
.pop_btn {
    text-align: center;
    margin-top: 20px;
}

.popup-main {
    position: relative;
    margin: 10px auto;
    background: #fff;
    border-radius: 5px;
    font-size: 12px;
    overflow: hidden;
}

.popup-title {
    overflow: hidden;
    line-height: 34px;
    padding-top: 6px;
    background: #f2f2f2;
}

.popup-result {
    box-sizing: border-box;
    line-height: 24px;
    margin: 25px auto;
    padding: 15px 10px 10px;
    border: 1px solid #ccc;
    position: relative;
}

.popup-result .title {
    position: absolute;
    top: -28px;
    left: 50%;
    width: 140px;
    font-size: 14px;
    margin-left: -70px;
    text-align: center;
    line-height: 30px;
    background: #fff;
}

.popup-result table {
    text-align: center;
    width: 100%;
    margin: 0 auto;
}

.popup-result table span {
    display: block;
    width: 100%;
    font-family: arial;
    line-height: 30px;
    height: 30px;
    white-space: nowrap;
    overflow: hidden;
    border: 1px solid #e8e8e8;
}

.popup-result-scroll {
    font-size: 12px;
    line-height: 24px;
    height: 10em;
    overflow-y: auto;
}
</style>
